The former French Open runner-up Errani, of Italy, double-bageled helpless
Aussie Olivia Rogowska, 6-0, 6-0, while the sixth-seeded Dane and 2009 U.S.
Open runner-up Wozniacki topped Chinese Duan Ying-Ying, 6-2, 7-5, and the
seventh-seeded Czech slugger Kvitova got past Japanese fellow left-hander
Misaki Doi in three sets, 6-2, 3-6, 6-1, in 1 hour, 55 minutes on a warm,
breezy Day 2 at the USTA Billie Jean King National Tennis Center.

"In the first round of Grand Slams it's difficult all the time so you have to
be focused," said Kvitova, who was a runner-up in New Haven, Conn., last week.
"I didn't play my game all the match. I didn't have focus. I have to have more
confidence."

Kvitova, who captured Wimbledon in 2011, has never made it past the fourth
round in New York. Her second-round opponent on Thursday will be capable Serb
Bojana Jovanovski.